<?xml version="1.0" encoding="utf-8"?><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"><xsl:import href="frame.xsl" /><xsl:import href="post.xsl" /><xsl:variable name="day" select="/day/@day" /><xsl:variable name="xml" select="concat('../',/day/@year,/day/@month,'.xml')" /><xsl:template match="/day"><xsl:for-each select="document($xml)//day[@day=$day]/post"><xsl:apply-templates select="." /></xsl:for-each></xsl:template></xsl:stylesheet>